- Classes: Alpha and beta proteins (a+b)
 - Folds: Photosystem I subunit PsaD
 - Superfamilies: Photosystem I subunit PsaD
 - Families: Photosystem I subunit PsaD
 
Protein Domains:
- Photosystem I subunit PsaD
- [A3B3C3D3E3F3G3H3I3J3K3L3], [ABCDEFGHIJKL]
 
 - automated matches
- [A2BCDEFGHIJKLMNOPQRSTUV]
 - [A2BCDEFGHIJKLMNOPQR], [A3B2C2DEFGHIJKLMNOPQRSTUVWXY]
 - [ABCDEFGHIJKLMNOP][a], [ABCDEFGHIJKLMNOPQ], [ABCDEFGHIJKLMNOP]
 - [A3B3C3D3E3F3G3H3I3J3K3]
 
 
	* [ ] : Polypeptide  - [AB] : Protein, [ab] : Small peptide
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
* ( ) : Nucleic acid - (AB) : DNA, (ab) : RNA
